SIMPSON Industrial Series 4400 PSI at 4.0 GPM HONDA® GX390 with AAA® Triplex Plunger Pump Cold Water Gas Professional Pressure Washer – Power Gen USA
Simpson PowerShot 3600 psi 2.5 GPM Cold Water Professional Gas Pressure Washer - Farm & Home Hardware
SIMPSON 15W40 Pump Oil 80138 - The Home Depot
PowerShot PS3835|Simpson
Simpson 60688 Professional ALH4240 4200 PSI Gas - Cold Water Aluminum Frame Pressure Washer w/ CAT Pump & Honda GX390 Engine
Need to know what oil to get for my new pressure washer (Simpson). This is what it came with but I'm just confused because when I look on Amazon I see all